Researchers have captured the first real-world evidence of tiny electrical flashes glowing from treetops during thunderstorms ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Gabriella DePinho Gabriella DePinho is a writer covering trending products.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Megan Wollerton Following a new round of testing, we have added a number of ...

Passivation with a bifunctional fluorinated ligand stabilizes mixed-halide perovskite nanocrystals, enabling high-color-purity deep-blue emission (460–470 nm) in LEDs with improved efficiency and ...

President Donald Trump and first lady Melania Trump lit the National Christmas Tree in Washington. Trump wished the crowd a very Merry Christmas as Melania did the ...

Optical modes in a microcavity are tuned reliably over wide spectral ranges via boundary-shape deformations. The technique developed by Ren et al. promises seminal efficiency enhancement for nonlinear ...